San Tan Valley Zoning & Land Use Guide
Key Zoning Facts
San Tan Valley Zoning Overview
San Tan Valley is an unincorporated census-designated place in Pinal County, making it subject to county rather than municipal zoning authority. As one of the largest unincorporated communities in Arizona, San Tan Valley is governed by the Pinal County Development Services Department. The area has grown rapidly with master-planned residential communities, and discussions about potential incorporation have been ongoing.
Key Zoning Districts
San Tan Valley uses a district-based zoning system with residential, commercial, and industrial classifications. Arizona municipalities adopt their own building codes and zoning ordinances, as the state does not mandate a statewide building code. Development standards address desert-specific considerations including heat mitigation, water conservation, and flood hazard management.
ADU Regulations
Arizona does not have a statewide ADU law, so accessory dwelling unit regulations are determined locally. San Tan Valley addresses ADUs through its municipal zoning code. Contact the local planning department for current requirements regarding size, setbacks, and permitting procedures.
Development Process
Building permits are processed through the local development services department. Projects must comply with locally adopted building codes and the zoning ordinance. Arizona's Proposition 207 property rights protections influence how local governments approach new land use regulations.
Regulatory Layers That Apply in San Tan Valley
Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.
Federal
- FEMA Flood Zones: Applicable
- View FEMA Flood Map
State — Arizona
- Building Code: No mandatory statewide code (local adoption)
County — Pinal County
- Role: Property records, tax assessment, unincorporated area planning
City / Municipal
The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.
Overlay Districts
No overlay districts identified.
Private Restrictions
- HOA / CC&Rs common: Yes
- Check HOA CC&Rs for additional restrictions.
Primary Zoning Districts
- Min Lot
- 6,000 sq ft
- Max Height
- 30 ft
- Front Setback
- 20 ft
- Side Setback
- 5 ft
- Rear Setback
- 20 ft
- Min Lot
- 10,000 sq ft
- Max Height
- 40 ft
- Front Setback
- 20 ft
- Side Setback
- 10 ft
- Rear Setback
- 20 ft
- Min Lot
- None
- Max Height
- 50 ft
- Front Setback
- 0 ft
- Side Setback
- 0 ft
- Rear Setback
- 0 ft
ADU Rules in San Tan Valley
- Max Size
- 1,000 sq ft
- Max Height
- 25 ft
- Rear Setback
- 5 ft
- Side Setback
- 3 ft
- Parking
- 1 off-street space required
- Owner Occupancy
- Varies by jurisdiction
- Permit Timeline
- 30-90 days
Permit Costs & Timelines
Permit Costs & Timelines
Specific permit fee schedules for San Tan Valley are available from the local planning department. Fees vary based on project type, scope, and valuation.
Check San Tan Valley permit fees →